(Pack of 6) F8T5/CW 8W T5 12" Cool White 4100K Fluorescent Light Bulb 20,000HR (Pack of 6) F8T5/CW Cool White 12" Straight T5 Fluorescent Tube 12,000 Life Hours, G5 Mini Bi-Pin Base Ultra Bright Color 4100K, Cool White 420 Lumens, CRI: 85